Heavy duty hard rock drill tool



FIG. 1 is a side elevational view of a heavy duty hard rock drill tool illustrating the invention, the opposite side being a mirror image;

FIG. 2 is a top plan view of the drill tool;

FIG. 3 is a bottom view of the drill tool;

FIG. 4 is another side elevational view of the drill tool, as rotated 90° from the FIG. 1 view, and the opposite side of the FIG. 4 view being a mirror image thereof; and

FIG. 5 is a perspective view of the drill tool. 

The ornamental design for a heavy duty hard rock drill tool, as shown. 